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-rw-r--r--src/mesa/shader/shader_api.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/mesa/shader/shader_api.c b/src/mesa/shader/shader_api.c
index 7c5a20bbbeb..161e8b61600 100644
--- a/src/mesa/shader/shader_api.c
+++ b/src/mesa/shader/shader_api.c
@@ -512,7 +512,7 @@ _mesa_bind_attrib_location(GLcontext *ctx, GLuint program, GLuint index,
{
struct gl_shader_program *shProg;
const GLint size = -1; /* unknown size */
- GLint i;
+ GLint i, oldIndex;
GLenum datatype = GL_FLOAT_VEC4;
shProg = _mesa_lookup_shader_program_err(ctx, program,
@@ -535,6 +535,14 @@ _mesa_bind_attrib_location(GLcontext *ctx, GLuint program, GLuint index,
return;
}
+ if (shProg->LinkStatus) {
+ /* get current index/location for the attribute */
+ oldIndex = _mesa_get_attrib_location(ctx, program, name);
+ }
+ else {
+ oldIndex = -1;
+ }
+
/* this will replace the current value if it's already in the list */
i = _mesa_add_attribute(shProg->Attributes, name, size, datatype, index);
if (i < 0) {